This is a file from the Wikimedia Commons. The description on its description page there is copied below.
Image of the largest Antarctic ozone hole ever recorded in September 2000. Data taken by the Total Ozone Mapping Spectrometer (TOMS) instrument aboard NASA's Earth Probe satellite. Other NASA ozone hole images can be found at http://ozonewatch.gsfc.nasa.gov
Scale (in Dobson units) added by Fir0002
Warnings:
Sellele pildile viitavad järgmised leheküljed: